Milk delivery and shipping can



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0 e 0. E. HINMAN & T. E. MQGRAOKEN.

MILK DELIVERY AND SHIPPING (JAN.

No. 407,207. Patented July 16, 1889.

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UNITED TATES ATENT OFFICE.

CHARLES E. HINMAN AND THOMAS E. MCCRAUKEN, OF MCCOOK, NEBRASKA, ASSIGNORS OF ONE-HALF TO VILLIAM O. RUSSELL, OF SAME PLACE, AND ANDRE\V J. FATE, OF DENVER, COLORADO.

MILK DELIVERY AND SHIPPING CAN.

SPECIFICATION forming part of Letters Patent No. 407,207, dated July 16, 1889.

Application filed May 13, 1889. Serial No. 310,626. (No model.)

T at whom it may concern: Referring to the drawings,F-igure 1 is a ver- Be it known that we, CHARLES E. HINMAN tical sectional view through an ordinary milkand THOMAS E. MCCRACKEN, citizens of the can and our improvement applied thereto. United States, residing at McCook, in the Fig. 2 is a like section with the lower part of 5 county of Red lVillow and State of Nebraska, the conical plug removed. Fig. 3 is a verhave invented certain new and useful Imtical section of the upper portion of the coniprovements in Milk Delivery and Shipping cal plug removed from the can. Fig. 4 is a Cans; and we do hereby declare the following like section of the lower conical plug, and to be a full, clear, and exact description of the Fig. 5 is a part sectional view of akey adapted 1o invention, such as will enable others skilled to place the plug, and Fig. 6 is a slightly-modiin the art to which it appertains to make and lied form of the entire plug. use the same, reference being had to the ac- Like letters of reference refer to correspondcompanyin g drawings, which form part of this in g parts in each figure of the drawings. specification. A represents an ordinary milk-can formed 15 Our invention relates to that class of cans of sheet metal with a conical top, having an constructed especially for delivering milk to internal screw-threaded flange a extending families, and for shipping in large quantities, upward therefrom. \Vithin the flange of the by railway or otherwise, to distant points, conicaltop there is inserted an inverted-coneand has for its object to provide a conical shaped hollow plug B, that is opened at each 20 plug extending from the top to the bottom of end and extends downward to about midway the interior of the can in such am anner that the interior of the can, which is made of tin, when inserted in the can, substantially filled, galvanized iron, or other suitable sheet metal. the increasing size of the plug as it passes The upper end of this cone is extended by an downward will compress the milk, so that it externally-screw-threaded sleeve 1), of brass,

25 will completely fill all of the space within the zinc, or other suitable metal, surrounded by can and crowd the globules downward and a collar C on its upper end that extends outoutward, and so pack them together as to renward over the top of the flange a of the can, der agitation or shaking of the milk impossiwhich is screwed into the neck or flange a as ble and keep the cream in the body of the the cone is lowered into the can. Under the go milk while it is being carried in small or collar C and upon the sleeve of the cone there large vessels by any means of conveyance, is a gasket c, of rubber or other soft packing, So and thereby preserve it in a sweet and wholeto form a tight joint between the collar and some state. upper edge of the neck or flange of the can A further object of our invention is to prowhen the cone B is fully screwed therein.

3 5 vide a plug in two sections, the upper section \Vithin the lower inner part of the cone 1% of which may have a sight-opening or gage to there is soldered or otherwise secured a sleeve 8 5 aid in filling the can, and also to serve as a D, of the same material as the one before denozzle through which all the surplus or overscribed, having an internal screw-tl'nead (I, flow milk can be poured off when the lower for the purpose hereinafter stated.

40 plug is inserted, and as a space in which the In the side of the upper edge of the cone air can circulate, and serve as a receptacle in 13, just underneath the edge of the sleeve 1), which ice or other cooling material can be there is a sight-opening covered bya glass E, placed when it is desired to lower the temsecurely packed and fastened therein, so that perature of the milk, while the lower conical it is air and water tight. The upper edge of 45 plug reaching to the bottom of the can is this glass is arranged on the same plane with screwed into the upper and securely locked the converging upper edges of the conical by means of a T-shaped key; and it consists top of the can to guide the eye in filling the in the construction hereinafter described, and can. more particularlypointed out in the claims. A closed extension-cone F is made to fit within the cone B and to extend to the bottom of the can,where it terminates in a point, thereby forming with the open cone B a substantially-continuous true taper of the cone from the top to the bottom of the can. On the upper end of the extension-cone F there is a cap f, of brass, zinc, or other suitable metal, having an external or male screwthread on its sides to fit within the female screw of the sleeve D in the lower end of the cone B. A square stud e is formed on the upper end of the cap to fit a socket g on the end of a long shank G of a T-shaped key, by which the cone F is screwed into or out of place in the open cone. I

The closed extension-cone F is made of the same material as the cone B, and is of a length so that its lower point will just reach the bottom of the can as its screw-cap is turned down into and seated within the sleeve D of the open cone, where, by a slight pressure of the key, it is looked as against any removal by manipulation during transit except by a suitable key, which is supposed to be only in the hands of the shipper and receiver or customer served with the milk.

WVe prefer to make the screw-threaded sleeve b in the top of the open cone and the screwcap fon the extension-cone to screw in the 7,

same direction, so that when the extensioncone is being screwed down firmly to its seat the sleeve on the top of the open cone will be tightened down upon its gasket and made more firm to prevent its being-removed by the hand while being carried from one point to another.

hen the can has been filled, as the lower part of the closed extension-cone F is lowered through the bottom of the open cone, the milk slightly rises in the cone Bun-til the screw-cap takes into the sleeve D, forming a tight joint, when, as the extension-cone is screwed downward by the key, the milk is compressed in the can.

The sleeve D may be of any desired length in the cone B, and the degree of compression depends on the distance the extension-cone is screwed into the sleeve after forming a tight joint.

The open cone B receives all of the overflow milk that is crowded out by the extenmilk, when, in large shipping-cans, the milk may be drawn out through a faucet near the bottom of the can, orin small cans for familysupply a suitable tool may be applied to the collar 0 and the open cone removed from the can, when the milk may be poured out. WVe do not, however, confine ourselves to the particuthough this form of cone may be seated in the can, the same as the one before described, if desired.

In the modified form of cone the gasket 0 is made to rest between the outer upper end of the cone B and the sleeve 19, forming an air-tight joint with the top of the flange a of v the can when the sleeve is screwed down thereon. sion-cone extending to the bottom of the can,

By the use of this form of comp-resthe cream is held within the body of the compressed milk, and preserved from all agitation and kept sweet and pure while being carried to its destination, and, if desired, the can after being filled can be immersed 1n cool water without disturbing its contents until it is sent away.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent of the United States, is

1. The combination, with a milk delivery and shipping can, of a conical displacement and compression plug extending from the top to the bottom of the interior of the can, said plug having a si ght-openin g in its upper part, the upper edge of the opening being on the same plane with the upper edge of the chamber of the can, as set forth.

2. The combination, with a can having a conical top, of a hollow conical displacement and compression plug open at one end extending from the top to the bottom of the interior of the can, said plug having a. sightrop ening with its upper edge on the same plane with the converging inner edges of the top of the can, and a screw-threaded sleeve on its upper end having a packing thereon, and fitting a screw-threaded flange extending from the top of the can, as set forth.

3. The combination, with a conical top, of a two-part conical plug extending from the top to the bottom of the can, the upper cone having a sight-opening at its upper edge, and open at each end and extending into the can from the top, and thelower or extension cone being secured within the lower end of the open cone and extending to the bottom of the can, as set forth.

4. The combination, with a can, of a twopart conical plug extending from the top to the bottom of the can, the upper cone being open and having a sight-opening in its side and a screw-threaded sleeve secured on its upper end working in avertical flange of the can, and its lower end extending into the center of the can and provided with an in- 1 In testimony whereofwe affix our signatures ternal screw-threaded sleeve, the lower 01' in presence of two Witnesses.

extenslon cone belng closed amt havtnga CHARLES E HINMAN screw-cap 0n 1ts upper end worklng wlt-hln 5 the sleeve on the lowerend 0f the upper cone, l HOMAS MCCRAOIXEI said screw-cap having a stud thereon for en- \Vitnesses: gaging with a key for operating the cone, as A. C. EBERT,

set forth. THos. GLASSCOTT. 

